An average of 6.26 million viewers tuned in to watch "Jimmy Kimmel Live!" as the comedian addressed his suspension that became a free speech cause celebre, according to Nielsen. ABC had pulled the show "indefinitely" starting Sept. 17 following blowback over Kimmel's remarks about the shooting death of right-wing activist Charlie Kirk.

The only times "Jimmy Kimmel Live!" has scored higher ratings were when it aired special episodes after the Oscars and the Super Bowl. Preliminary numbers for Tuesday's show didn't include streaming.

The program delivered strong numbers despite not airing on 60 network affiliates covering 23% of U.S. television households. Television station ownership groups Nexstar and Sinclair kept the program off their ABC-affiliated outlets even as Walt Disney Co.-owned ABC resumed production.

By late Wednesday, 15 million people had watched Kimmel's monologue and a comedy bit with actor Robert De Niro on YouTube, where ABC made it available shortly after it aired on TV. ABC said a total of 26 million people watched the monologue across YouTube and social media platforms.

Kimmel clearly grasped that his return would be a historic moment in the annals of late-night TV, as his network-imposed hiatus became a global news story and sparked a widespread debate about free speech and the role of government regulators.

He opened with the line, "As I was saying before I was interrupted" — the same words "Tonight" show host Jack Paar used in 1960 when he returned from a monthlong walkout. Paar left his program after NBC censors cut a water closet joke from his monologue, which became one of the biggest TV industry controversies of that era.

Kimmel was pulled off the air the same day Federal Communications Commission Chair Brendan Carr took aim at the host's Sept. 15 monologue, in which Kimmel said MAGA Republicans were using Kirk's death to "score political points" and were trying to categorize suspected shooter Tyler Robinson as "anything other than one of them."

Carr, who oversees regulations for broadcast stations, called Kimmel's remarks "the sickest conduct possible" and called for ABC to act. He threatened to go after TV stations' licenses if it failed to do so.

During his opening monologue, Kimmel got choked up when he told viewers it was “never my intention to make light of the murder of a young man” when he discussed the right wing's response to the shooting.

But Kimmel went on to chastise Carr, showing his social media postings in recent years that gave unequivocal support to the 1st Amendment and condemning the censorship of TV hosts and commentators.

Since becoming FCC chair under the Trump administration, Carr has joined the president in denouncing his late-night critics.

While Kimmel was contrite regarding Kirk, he showed no mercy for Trump in the monologue addressing the matter that took much of the show, a clear indication that he won't be changing his tone. He also continued to promote free speech, saying the government attempts to stifle voices such as his are "un-American" and "so dangerous."

Kimmel also expressed gratitude to politically-right-leaning politicians and commentators who expressed dismay over his removal from the air, including Ted Cruz and Joe Rogan.

Trump reacted harshly to Kimmel's return. In a Truth Social post, he said he may file another lawsuit against ABC. The network paid a $16-million settlement last year after "Good Morning America" co-host George Stephanopoulos mistakenly said Trump was found liable of of sexual assault instead of sexual abuse.

A letter signed by several dozen former employees of ABC, which was obtained by The Times, praised Disney Chief Executive Bob Iger's decision to return Kimmel to the air, but warned "it must be the first step in a concerted effort to defend free speech and press freedom against political intimidation."

"The $16 million settlement with Donald Trump, combined with the absence of a strong public defense of ABC News journalists under attack, has emboldened Administration efforts to intimidate the press," said the letter, which included the signatures of former ABC News correspondents Sam Donaldson, Chris Bury, Ned Potter, Judy Muller and Brian Rooney.

Nexstar is still keeping "Jimmy Kimmel Live!" off its ABC affiliates. A Nexstar representative said Wednesday the company is having "productive discussions with executives at the Walt Disney Company, with a focus on ensuring the program reflects and respects the diverse interests of the communities we serve.”

A representative for Sinclair, which preempted "Jimmy Kimmel Live!" in markets such as Seattle and Washington, D.C., said in a statement that the company is also monitoring the situation before deciding to return the program to its ABC station program lineups.